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| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Common Stock Value | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | NA | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | NA | NA | 0.00 | NA | NA | NA | |
| dei: Entity Common Stock Shares Outstanding | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Weighted Average Number Of Diluted Shares Outstanding | 18.92 | 19.11 | 18.95 | NA | 18.93 | 18.95 | 18.62 | NA | 18.31 | 17.88 | 17.74 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Weighted Average Number Of Shares Outstanding Basic | 18.70 | 18.92 | 18.95 | NA | 18.93 | 18.95 | 18.62 | NA | 18.31 | 17.88 | 17.74 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Earnings Per Share Basic | 0.02 | 0.11 | -0.11 | 0.82 | -0.42 | -0.56 | -0.71 | -0.60 | -0.69 | -0.10 | -0.68 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Earnings Per Share Diluted | 0.02 | 0.11 | -0.11 | 0.82 | -0.42 | -0.56 | -0.71 | -0.60 | -0.69 | -0.10 | -0.68 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenues | 1.27 | 1.05 | 0.61 | 0.61 | 0.58 | 0.40 | 0.34 | 0.34 | 0.39 | 0.18 | 0.18 | 0.18 | 0.24 | 0.25 | 0.26 | 0.33 | 0.36 | 0.42 | 0.45 | 1.30 | 1.50 | 1.82 | 1.87 | 1.78 | 1.60 | 1.51 | 1.47 | 1.26 | 1.34 | 1.14 | 1.05 | 0.95 | 0.94 | 0.81 | 0.84 | 0.82 | 0.84 | 0.69 | 0.83 | 0.91 | 0.93 | 0.91 | 0.80 | |
| Costs And Expenses | 14.07 | 14.57 | 14.26 | 13.99 | 14.78 | 13.94 | 14.05 | 12.12 | 12.70 | 12.12 | 12.08 | 11.32 | 12.30 | 17.35 | 10.84 | 10.75 | 9.54 | 8.67 | 9.99 | 10.54 | 10.23 | 13.97 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Research And Development Expense | 1.24 | 1.15 | 1.07 | 1.43 | 0.94 | 0.98 | 1.10 | 0.77 | 0.89 | 0.93 | 1.00 | 1.75 | 1.10 | 0.81 | 0.69 | 0.85 | 0.61 | 0.56 | 0.69 | 0.45 | 0.65 | 0.57 | 0.64 | 0.58 | 0.59 | 0.63 | 0.55 | 0.58 | 0.54 | 0.62 | 0.57 | 0.34 | 0.34 | 0.34 | 0.30 | 0.32 | 0.24 | 0.21 | 0.23 | 0.24 | 0.22 | NA | NA | |
| General And Administrative Expense | 11.25 | 11.90 | 11.67 | 10.31 | 12.09 | 11.43 | 11.36 | 9.75 | 10.22 | 9.82 | 9.73 | 21.62 | 6.30 | 5.58 | 5.74 | 5.73 | 4.74 | 4.56 | 6.49 | 6.74 | 6.72 | 6.59 | 5.57 | 5.52 | 5.46 | 5.00 | 4.88 | 4.48 | 4.85 | 5.48 | 7.75 | 4.57 | 3.84 | 4.59 | 3.72 | 5.13 | 3.34 | 2.50 | 2.42 | 0.25 | 0.23 | NA | NA | |
| Selling And Marketing Expense | 1.38 | 1.31 | 1.27 | 1.95 | 1.39 | 1.16 | 1.24 | 1.15 | 1.26 | 0.99 | 1.05 | 1.04 | 0.61 | 0.63 | 0.66 | 0.92 | 0.95 | 0.76 | 1.21 | 0.56 | 0.62 | 0.86 | 1.63 | 1.96 | 1.62 | 1.70 | 1.69 | 1.80 | 1.42 | 1.22 | 1.22 | 1.14 | 1.12 | 0.89 | 0.81 | 0.64 | 0.48 | 0.40 | 0.29 | 0.32 | 0.35 | NA | NA | |
| Operating Income Loss | 0.97 | 2.26 | -2.84 | 15.68 | -8.40 | -10.66 | -13.07 | -10.80 | -12.38 | -11.95 | -11.90 | -11.21 | -12.06 | -16.27 | -15.27 | -10.43 | -9.18 | -8.24 | -9.54 | -9.25 | -8.73 | -12.15 | -12.62 | -8.56 | -8.09 | -7.72 | -7.35 | -7.55 | -7.30 | -7.85 | -10.07 | -6.80 | -5.27 | -5.49 | -4.37 | -5.60 | -3.53 | -2.64 | -2.39 | -0.22 | -0.18 | NA | NA | |
| Allocated Share Based Compensation Expense | 3.92 | 3.84 | 4.26 | 4.46 | 4.59 | 4.69 | 4.13 | 3.58 | 3.53 | 3.22 | 3.30 | 2.68 | 2.67 | 8.60 | 1.96 | 1.43 | 1.40 | 1.41 | 1.58 | 1.36 | 1.46 | 3.66 | 3.82 | 1.60 | 1.48 | 1.43 | 1.09 | 1.11 | 1.20 | 1.07 | 1.37 | 1.38 | 1.13 | 1.11 | 1.35 | 2.28 | 1.40 | 1.18 | 2.10 | NA | NA | NA | NA | |
| Income Tax Expense Benefit | 1.34 | 0.65 | -0.24 | 0.64 | 0.21 | 0.21 | 0.20 | 0.27 | 0.41 | 0.15 | 0.15 | -0.19 | 0.15 | 0.14 | 0.01 | 1.81 | 0.13 | 0.17 | 0.29 | 0.69 | 0.00 | 0.00 | 0.00 | 0.44 | -2.18 | 0.66 | 0.65 | 5.60 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Income Taxes Paid Net | 0.00 | 0.00 | 0.00 | NA | 0.00 | NA | NA | NA | 0.00 | NA | NA | NA | 0.00 | NA | NA | NA | 0.00 | NA | NA | NA | 0.01 | NA | NA | NA | 0.00 | 0.00 | 0.01 | NA | NA | NA | 0.01 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Net Income Loss | 0.33 | 2.07 | -2.12 | 15.54 | -8.02 | -10.64 | -13.20 | -11.02 | -12.71 | -12.02 | -11.95 | -10.94 | -12.09 | -16.28 | -15.13 | -11.74 | -8.81 | -7.71 | -9.37 | -9.56 | -8.35 | -11.78 | -12.30 | -8.80 | -5.72 | -8.20 | -7.91 | -14.01 | -7.29 | -7.83 | -10.05 | -6.77 | -5.24 | -5.46 | -4.35 | -5.58 | -3.53 | -3.02 | -2.59 | -0.31 | -0.27 | -0.30 | -0.34 |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Assets | 320.88 | 279.88 | 279.33 | 278.56 | 257.61 | 255.94 | 264.40 | 278.04 | 288.05 | 246.49 | 248.11 | 253.06 | 241.12 | 246.62 | 254.38 | 267.40 | 275.83 | 282.90 | 195.93 | 196.75 | 203.68 | 207.29 | 212.46 | 220.34 | 227.31 | 232.94 | 238.77 | 245.49 | 252.69 | 257.93 | 264.36 | 274.05 | 278.90 | 282.37 | 285.27 | 227.83 | 226.09 | NA | NA | 0.80 | NA | NA | NA | |
| Liabilities | 148.62 | 103.78 | 98.13 | 98.77 | 98.58 | 89.85 | 89.85 | 91.75 | 92.43 | 43.45 | 38.88 | 40.55 | 21.95 | 19.32 | 19.94 | 22.33 | 20.57 | 20.42 | 21.39 | 15.99 | 15.45 | 13.91 | 11.75 | 17.87 | 17.50 | 18.42 | 17.53 | 17.59 | 12.04 | 11.19 | 10.86 | 11.86 | 11.32 | 10.69 | 9.27 | 13.62 | 9.97 | NA | NA | 5.01 | NA | NA | NA | |
| Liabilities And Stockholders Equity | 320.88 | 279.88 | 279.33 | 278.56 | 257.61 | 255.94 | 264.40 | 278.04 | 288.05 | 246.49 | 248.11 | 253.06 | 241.12 | 246.62 | 254.38 | 267.40 | 275.83 | 282.90 | 195.93 | 196.75 | 203.68 | 207.29 | 212.46 | 220.34 | 227.31 | 232.94 | 238.77 | 245.49 | 252.69 | 257.93 | 264.36 | 274.05 | 278.90 | 282.37 | 285.27 | 227.83 | 226.09 | NA | NA | 0.80 | NA | NA | NA | |
| Stockholders Equity | 172.26 | 176.10 | 181.19 | 179.79 | 159.03 | 166.09 | 174.55 | 186.30 | 195.62 | 203.05 | 209.22 | 212.51 | 219.17 | 227.30 | 234.45 | 245.07 | 255.25 | 262.48 | 174.54 | 180.76 | 188.23 | 193.38 | 200.71 | 202.47 | 209.81 | 214.52 | 221.24 | 227.90 | 240.65 | 246.74 | 253.50 | 262.19 | 267.58 | 271.68 | 276.00 | 214.21 | 216.12 | NA | NA | -4.21 | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Assets Current | 77.85 | 62.11 | 43.84 | 59.46 | 72.47 | 81.83 | 98.34 | 115.77 | 135.03 | 106.38 | 111.59 | 121.05 | 113.03 | 118.63 | 126.39 | 142.15 | 152.34 | 158.28 | 70.51 | 78.35 | 84.70 | 87.72 | 93.12 | 100.28 | 106.57 | 111.80 | 117.02 | 125.72 | 132.59 | 138.20 | 144.61 | 154.99 | 161.45 | 170.03 | 176.98 | 120.90 | 123.82 | NA | NA | 0.44 | NA | NA | NA | |
| Cash And Cash Equivalents At Carrying Value | 62.03 | 48.53 | 29.03 | 43.18 | 57.51 | 70.11 | 86.46 | 105.62 | 127.76 | 100.87 | 106.90 | 117.54 | 108.49 | 116.21 | 124.77 | 137.45 | 150.24 | 157.49 | 69.02 | 76.72 | 82.35 | 85.64 | 90.94 | 98.32 | 104.24 | 110.54 | 115.54 | 124.08 | 130.69 | 136.96 | 143.18 | 153.46 | 160.68 | 169.28 | 175.85 | 119.87 | 122.73 | 125.27 | 6.95 | 0.05 | 0.03 | NA | NA | |
| Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents | 69.55 | 48.53 | 29.03 | 43.18 | 57.51 | 70.11 | 86.46 | 105.62 | 127.76 | 100.87 | 106.90 | 117.54 | 108.49 | 116.21 | 124.77 | 137.45 | 150.24 | 157.49 | 69.02 | 76.72 | 82.35 | 85.64 | 90.94 | 98.32 | 104.24 | 110.55 | 115.54 | 124.08 | NA | NA | NA | 153.46 | NA | NA | NA | 119.87 | NA | NA | NA | NA | NA | NA | NA | |
| Prepaid Expense And Other Assets Current | 15.82 | 13.58 | 14.80 | 16.28 | 14.96 | 11.71 | 11.88 | 10.15 | 7.27 | 5.51 | 4.69 | 3.51 | 4.53 | 2.36 | 1.60 | 4.64 | 2.01 | 0.65 | 1.19 | 1.18 | 1.77 | 1.10 | 1.25 | 0.85 | 1.43 | 0.48 | 0.51 | 0.87 | 0.99 | 0.55 | 0.79 | 0.91 | 0.27 | 0.35 | NA | 0.63 | NA | NA | NA | 0.02 | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Property Plant And Equipment Net | 2.13 | 2.32 | 2.54 | 3.61 | 3.34 | 3.32 | 2.59 | 2.95 | 2.64 | 3.05 | 3.42 | 3.57 | 3.75 | 4.75 | 5.87 | 7.00 | 8.09 | 8.65 | 9.31 | 9.83 | 10.38 | 11.00 | 11.68 | 12.78 | 13.36 | 14.11 | 14.71 | 14.51 | 15.15 | 14.76 | 14.97 | 15.12 | 14.05 | 10.47 | 7.74 | 6.38 | 1.72 | NA | NA | 0.10 | NA | NA | NA | |
| Indefinite Lived Intangible Assets Excluding Goodwill | 213.72 | 197.57 | 215.79 | 202.04 | 169.66 | 159.47 | 154.88 | 151.17 | 144.45 | 130.89 | 126.99 | 122.12 | 118.07 | 117.34 | 115.84 | 111.53 | 108.33 | 107.75 | 107.55 | 107.55 | 107.54 | 107.54 | 106.61 | 106.61 | 106.61 | 106.35 | 106.35 | 104.68 | 104.43 | 104.43 | 104.23 | 103.66 | 101.58 | 100.08 | 100.30 | 100.30 | NA | NA | NA | NA | NA | NA | NA | |
| Other Assets Noncurrent | 15.04 | 15.05 | 14.07 | 10.08 | 8.57 | 7.79 | 4.79 | 4.11 | 1.68 | 1.66 | 1.31 | 1.21 | 0.84 | 0.21 | 0.17 | 0.18 | 0.19 | 0.80 | 0.82 | 0.84 | 0.87 | 0.83 | 0.86 | 0.49 | 0.58 | 0.47 | 0.48 | 0.37 | 0.31 | 0.33 | 0.33 | 0.06 | 1.60 | 1.56 | 0.03 | 0.03 | 0.02 | NA | NA | 0.01 | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Liabilities Current | 17.26 | 15.30 | 32.60 | 31.90 | 31.33 | 29.90 | 8.97 | 9.64 | 9.87 | 6.97 | 7.34 | 8.62 | 9.76 | 6.48 | 6.78 | 8.82 | 8.22 | 7.96 | 8.29 | 8.84 | 7.91 | 6.22 | 5.02 | 5.23 | 5.29 | 4.04 | 3.85 | 4.72 | 5.12 | 4.26 | 3.94 | 5.06 | 4.50 | 4.68 | 3.08 | 7.25 | 3.40 | NA | NA | 0.37 | NA | NA | NA | |
| Accounts Payable And Accrued Liabilities Current | 8.21 | 7.00 | 7.79 | 6.62 | 6.56 | 5.39 | 5.07 | 6.53 | 6.78 | 4.68 | 5.05 | 6.26 | 7.35 | 4.02 | 3.99 | 5.65 | 4.48 | 3.64 | 3.52 | 5.11 | 6.51 | 5.39 | 4.17 | 4.32 | 3.95 | 2.68 | 2.48 | 3.40 | 3.83 | 2.95 | 2.63 | 3.78 | 3.43 | 3.89 | 2.32 | 6.47 | 2.66 | NA | NA | 0.25 | NA | NA | NA | |
| Contract With Customer Liability Current | 6.16 | 5.28 | 2.90 | 2.77 | 2.66 | 2.51 | 2.19 | 1.48 | 1.48 | 0.74 | 0.74 | 0.74 | 0.73 | 0.73 | 0.73 | 0.73 | 0.75 | 0.76 | 0.78 | 0.79 | 0.80 | 0.80 | 0.81 | 0.81 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deferred Income Tax Liabilities Net | 6.33 | 5.81 | 5.17 | 5.44 | 4.80 | 4.59 | 4.39 | 4.19 | 3.92 | 3.51 | 3.35 | 3.21 | 3.40 | 3.24 | 3.10 | 3.08 | 1.28 | NA | NA | 0.69 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Other Liabilities Noncurrent | 0.51 | 0.51 | 0.51 | 0.51 | 0.54 | 0.55 | 0.54 | 0.54 | 0.57 | 0.74 | 0.86 | 0.88 | 0.68 | 0.98 | 0.85 | 0.64 | 0.72 | 0.37 | 0.60 | 3.00 | 3.88 | 3.83 | 2.68 | 2.33 | 2.13 | 1.94 | 1.70 | 1.34 | 1.19 | 1.01 | 0.80 | 0.65 | NA | NA | NA | 0.06 | NA | NA | NA | NA | NA | NA | NA | |
| Operating Lease Liability Noncurrent | 3.70 | 2.28 | 2.60 | 2.92 | 3.19 | 3.36 | 3.79 | 4.18 | 4.53 | 4.90 | 5.26 | 5.60 | 5.93 | 6.25 | 6.67 | 7.05 | 7.05 | 7.05 | 7.05 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stockholders Equity | 172.26 | 176.10 | 181.19 | 179.79 | 159.03 | 166.09 | 174.55 | 186.30 | 195.62 | 203.05 | 209.22 | 212.51 | 219.17 | 227.30 | 234.45 | 245.07 | 255.25 | 262.48 | 174.54 | 180.76 | 188.23 | 193.38 | 200.71 | 202.47 | 209.81 | 214.52 | 221.24 | 227.90 | 240.65 | 246.74 | 253.50 | 262.19 | 267.58 | 271.68 | 276.00 | 214.21 | 216.12 | NA | NA | -4.21 | NA | NA | NA | |
| Common Stock Value | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | NA | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | NA | NA | 0.00 | NA | NA | NA | |
| Additional Paid In Capital | 529.05 | 525.25 | 521.68 | 518.16 | 512.93 | 508.48 | 504.30 | 500.12 | 495.46 | 487.37 | 481.52 | 472.85 | 468.58 | 464.62 | 455.49 | 450.98 | 449.43 | 447.85 | 352.19 | 349.23 | 347.13 | 343.93 | 339.48 | 335.77 | 334.31 | 333.30 | 331.81 | 330.57 | 329.31 | 328.11 | 327.03 | 325.67 | 324.29 | 323.15 | 322.00 | 255.86 | 252.19 | NA | NA | 2.21 | NA | NA | NA | |
| Retained Earnings Accumulated Deficit | -356.79 | -349.15 | -340.49 | -338.37 | -353.91 | -342.39 | -329.75 | -313.83 | -299.84 | -284.32 | -272.30 | -260.35 | -249.41 | -237.32 | -221.04 | -205.91 | -194.18 | -185.37 | -177.65 | -168.46 | -158.90 | -150.55 | -138.77 | -133.30 | -124.50 | -118.78 | -110.58 | -102.67 | -88.66 | -81.37 | -73.54 | -63.49 | -56.71 | -51.47 | -46.01 | -41.66 | -36.08 | NA | NA | -26.94 | NA | NA | NA | |
| Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value | 3.92 | 3.84 | 4.26 | 4.46 | 4.59 | 4.69 | 4.13 | 3.58 | 3.63 | 3.22 | 3.30 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 2.28 | NA | NA | NA | NA | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Operating Activities | 33.64 | 10.42 | -8.21 | -8.57 | -0.73 | -8.12 | -9.83 | -9.12 | 39.63 | -2.93 | -9.66 | 10.71 | -5.93 | -10.13 | -4.61 | -9.69 | -6.73 | -5.51 | -9.03 | -6.13 | -4.75 | -5.09 | -7.12 | -5.08 | -5.60 | -4.93 | -6.37 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Net Cash Provided By Used In Investing Activities | -4.54 | 20.08 | -5.20 | -6.52 | -8.24 | -5.72 | -6.66 | -11.13 | -4.21 | -5.73 | -6.35 | -3.06 | -3.08 | 1.06 | -9.09 | -3.22 | -0.70 | -0.26 | -0.25 | -0.23 | -0.29 | -0.99 | -0.15 | -0.20 | -0.23 | -0.12 | -2.33 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Net Cash Provided By Used In Financing Activities | -8.09 | -11.01 | -0.74 | 0.76 | -3.64 | -2.51 | -2.68 | -1.89 | -8.53 | 2.62 | 5.37 | 1.40 | 1.29 | 0.51 | 1.02 | 0.12 | 0.18 | 94.24 | 1.58 | 0.73 | 1.74 | 0.79 | -0.11 | -0.64 | -0.47 | 0.05 | 0.16 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Operating Activities | 33.64 | 10.42 | -8.21 | -8.57 | -0.73 | -8.12 | -9.83 | -9.12 | 39.63 | -2.93 | -9.66 | 10.71 | -5.93 | -10.13 | -4.61 | -9.69 | -6.73 | -5.51 | -9.03 | -6.13 | -4.75 | -5.09 | -7.12 | -5.08 | -5.60 | -4.93 | -6.37 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Net Income Loss | 0.33 | 2.07 | -2.12 | 15.54 | -8.02 | -10.64 | -13.20 | -11.02 | -12.71 | -12.02 | -11.95 | -10.94 | -12.09 | -16.28 | -15.13 | -11.74 | -8.81 | -7.71 | -9.37 | -9.56 | -8.35 | -11.78 | -12.30 | -8.80 | -5.72 | -8.20 | -7.91 | -14.01 | -7.29 | -7.83 | -10.05 | -6.77 | -5.24 | -5.46 | -4.35 | -5.58 | -3.53 | -3.02 | -2.59 | -0.31 | -0.27 | -0.30 | -0.34 | |
| Depreciation Depletion And Amortization | 0.20 | 0.21 | 0.25 | 0.31 | 0.37 | 0.37 | 0.36 | 0.45 | 0.46 | 0.26 | 0.28 | 0.12 | 1.02 | 1.19 | 1.21 | 1.18 | 1.14 | 0.64 | 0.64 | 0.70 | 0.70 | 0.72 | 0.73 | 0.74 | 0.73 | 0.72 | 0.65 | 0.61 | 0.58 | 0.55 | 0.49 | 0.27 | 0.16 | 0.08 | 0.05 | 0.04 | 0.03 | 0.01 | 0.01 | 0.01 | NA | NA | NA | |
| Deferred Income Tax Expense Benefit | 0.52 | 0.65 | -0.27 | 0.60 | 0.21 | 0.20 | 0.20 | 0.27 | 0.41 | 0.15 | 0.15 | -0.19 | 0.15 | 0.14 | 0.01 | 1.80 | 0.13 | 0.17 | 0.29 | NA | NA | NA | NA | 6.06 | 5.60 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Investing Activities | -4.54 | 20.08 | -5.20 | -6.52 | -8.24 | -5.72 | -6.66 | -11.13 | -4.21 | -5.73 | -6.35 | -3.06 | -3.08 | 1.06 | -9.09 | -3.22 | -0.70 | -0.26 | -0.25 | -0.23 | -0.29 | -0.99 | -0.15 | -0.20 | -0.23 | -0.12 | -2.33 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Payments To Acquire Property Plant And Equipment | 0.06 | 0.19 | 0.03 | 0.58 | 0.40 | 1.14 | 0.01 | 0.80 | 0.04 | 0.05 | 0.16 | -0.00 | 0.03 | 0.10 | 0.10 | 0.05 | 0.11 | 0.05 | 0.25 | 0.23 | 0.28 | 0.06 | 0.15 | 0.20 | -0.02 | 0.12 | 0.65 | -0.03 | 0.96 | 0.34 | 0.38 | 1.14 | 3.73 | 2.81 | 1.40 | 4.70 | 1.60 | 0.04 | 0.00 | 0.00 | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Financing Activities | -8.09 | -11.01 | -0.74 | 0.76 | -3.64 | -2.51 | -2.68 | -1.89 | -8.53 | 2.62 | 5.37 | 1.40 | 1.29 | 0.51 | 1.02 | 0.12 | 0.18 | 94.24 | 1.58 | 0.73 | 1.74 | 0.79 | -0.11 | -0.64 | -0.47 | 0.05 | 0.16 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Payments For Repurchase Of Common Stock | 7.97 | NA | NA | 0.00 | 3.50 | 2.00 | 2.73 | 2.97 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenues | 1.27 | 1.05 | 0.61 | 0.61 | 0.58 | 0.40 | 0.34 | 0.34 | 0.39 | 0.18 | 0.18 | 0.18 | 0.24 | 0.25 | 0.26 | 0.33 | 0.36 | 0.42 | 0.45 | 1.30 | 1.50 | 1.82 | 1.87 | 1.78 | 1.60 | 1.51 | 1.47 | 1.26 | 1.34 | 1.14 | 1.05 | 0.95 | 0.94 | 0.81 | 0.84 | 0.82 | 0.84 | 0.69 | 0.83 | 0.91 | 0.93 | 0.91 | 0.80 | |
| Evergy, Spectrum | 0.27 | 0.27 | 0.27 | 0.30 | 0.20 | 0.06 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Motorola, Spectrum | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Xcel Energy Services Inc, Spectrum | 0.70 | 0.40 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
